在波束赋形系统模型和算法准则的基础上,给出一种相对传统特征值分解方法有一定简化的算法。 该算法能够有效克服波束赋形过程中复杂度较大且会引起系统延迟的问题。根据TD-LTE系统物理层协议规定生成信号 源并进行建模,通过搭建完整的赋形链路来获得波束赋形的加权系数。在多径衰落信道下,对传统的基于QR分解的特 征值分解算法和简化算法进行仿真分析。结果表明:相同的仿真条件下,简化后的算法能够在保持一定精度的基础上, 将把复杂度降低为原来的1/60。

An algorithm based on beamforming system models and algorithm criteria is simpler than the traditional eigen-value decomposition method. It also can overcome the problem of the large complexity and system delay in the process of beamforming. According to the TD-LTE protocol, an uplink signal source and model is constructed. And then, the beamforming weighting factor is obtained by constructing the complete beamforming link. In the multipath fading channel, the traditional eigen-value decomposition algorithm based on the QR factorization (a method of orthogonal matrix triangularization) and simple algorithm is simulated. The results indicate that the simple EBB algorithm can reduce the complexity by 1/60 and keep the same or similar precision with the traditional algorithm.